352 BIOCHEMICAL SYSTEMATICS 



Glanville, E. V., and M. Demerec. 1960. Threonine, isoleucine and isoleucine- 

 valine mutants of Salmonella typhimurium. Genetics 45: 1359-1374. 



Gregory, K. F. 1961. Introductory remarks. Conference on multiple forms of 

 enzymes. Annals N. Y. Acad. Sci. 94 : 657-658. 



Greshoff, M. 1909. Phytochemical investigations at Kew. Bull. Misc. Inf. Roy. 

 Bot. Gardens, Kew 10:397-418. 



Grobbelaar, N., and F. C. Steward. 1953. Pipecolic acid in Phaseolus vulgaris: 

 Evidence on its derivation from lysine. Jour. Amer. Chem. Soc.75:4341- 

 4343. 



Hansel, R. 1956. Pflanzenchemie und Pflanzenverwandtschaft. Arch. Pharm. 

 259/61:619-628. 



Haslewood, G. A. D. 1959. Species comparison as an aid in the study of the proc- 

 ess sterols^ bile salts, p. 206-216. In G. E. W. Wolstenholme and M. 

 O'Conner [eds.]. Biosynthesis of terpenes and sterols. Ciba Foundation 

 Symp. Little, Brown and Co., New York. 



Hegnauer, R. 1958. Chemotaxonomische Betrachtungen. Pharm. Acta Helvetiae 

 33:287-305. 



Horowitz, N. H. 1950. Biochemical genetics oi Neurospora. Adv. Genet. 3:33-71. 



Hubbard, R., and R. C. St. George. 1958. The rhodopsin system of the squid. 

 Jour. Gen. Physiol. 41:501-528. 



Hubby, Jack L., and Lynn H. Throckmorton. 1960. Evolution and pteridine 

 metabolism in the genus Drosophila. Proc. Nat. Acad. Sci. U.S. 46 : 65-78. 



Ingram, V. M. 1961. Gene evolution and the haemoglobins. Nature 189:704-708. 



Johnson, F. H., Y. Haneda, and E. H. C. Sie. 1960. An interphylum luciferin- 

 luciferase reaction. Science 132 : 422-423. 



Kaplan, N. O., and M. M. Ciotti. 1961. Evolution and differentiation of dehy- 

 drogenases. Annals N. Y. Acad. Sci. 94:701-722. 



Kaplan, N. O., M. M. Ciotti, M. Hamolsky, and R. E. Bieber 1960. Molecular 

 heterogeneity and evolution of enzymes. Science 131 : 392-397. 



Markert, C. D., and R. D. Owens. 1954. Immunogenetic studies of tyrosine 

 specificity. Genetics 39:818-835. 



Moritz, O. 1958. Die Serologie der pflanzlichen Eiweisskorper. Encyclo. Plant 

 Physiol. 8:356-414. Springer, Berlin. 



Munkner, H. 1925. Das Vorkommen und Fehlen des Emodins bei den Arten der 

 Gattung Aloe in Hinblick auf ihre Systematik mit einer erganzenden 

 Untersuchung der Aloesaftbehalter. Beitrage zur Biologie der Pflanzen 

 16:217-266. 



Nisselbaum, J. S., M. Schlamowitz, and O. Bodansky. 1961. Immunochemical 

 studies of functionally similar enzymes. Ann. N. Y. Acad. Sci. 94 : 970-987. 



